Blancas' death is just one of 13 high-profile cases this year that remain unsolved as 2017 winds to a close.

At least 11 San Antonio homicides in 2017 are open cases. Some were the result of a robbery gone wrong, while others don't seem to have a motive behind them.

Other disturbing unsolved cases aren't homicides. Police still haven't found the man who allegedly raped a woman who was jogging in Hardberger Park in September, or the driver who fled the scene after striking a 9-year-old boy.

Though leads in some of these cases have gone cold, tipsters can help break these cases open. Tips for unsolved cases can always be submitted through the phone at 210-224-STOP or online at www.sacrimestoppers.com.

Click through the slideshow to see some the unsolved cases that made the news in 2017.